| タイトル | Variable area nozzle including a plurality of convexly vanes with a crowned contour, in a vane to vane sealing arrangement and with nonuniform lengths |
| 本文（外部サイト） | http://hdl.handle.net/2060/20090004214 |
| 著者（英） | Arnold, Steven M.; Penney, Nicholas |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 2008-12-02 |
| 言語 | eng |
| 内容記述 | A variable area nozzle comprising a concentric support and a plurality of convexly contoured self sealing vanes is disclosed and claimed. The vanes are circumferentially and rotatably mounted to the concentric support forming a nozzle infinitely positionable between a first position corresponding to a minimum area nozzle and a second position corresponding to a maximum area nozzle. A closer, which is preferably a shape memory alloy (SMA), urges the nozzle toward the first position corresponding to a minimum area nozzle. Periodically spaced openers act between adjacent vanes to urge the nozzle to a second position corresponding to a maximum area nozzle. |
| NASA分類 | Mechanical Engineering |
| 権利 | No Copyright |
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